Hundreds of demonstrators staged a protest yesterday before the office of the public prosecutor, calling for revealing the place of a bloger, releasing Samalout detainees and bringing a policeman to trial. During the protest, the April 6th and Youth for Change Movements called for revealing the place of bloger Mohamed Adel, who was detained on his way to Arish to end some personal matters. "I called on the public prosecutor to release my son or even illustrate why he was detained, especially as he is under 20 years of age. When they searched the house, they did not find leaflets as they had alleged," Adel's father said. The Popular Movement for the Liberation of Egypt called for releasing Samalout detainees and bringing a policeman who killed a pregnant woman while trying to arrest her brother-in-law to trial. Hisham Mubarak Law Center for Human Rights and Al-Nadeem Center for Human Rights screened a documentary film in the Press Syndicate on the relatives of the detainees and on eyewitnesses.